JP4441088B2 - Packaging container - Google Patents

Packaging container Download PDF

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Publication number
JP4441088B2
JP4441088B2 JP2000298950A JP2000298950A JP4441088B2 JP 4441088 B2 JP4441088 B2 JP 4441088B2 JP 2000298950 A JP2000298950 A JP 2000298950A JP 2000298950 A JP2000298950 A JP 2000298950A JP 4441088 B2 JP4441088 B2 JP 4441088B2
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JP
Japan
Prior art keywords
opening
break
sheet
lid
region
Prior art date
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Expired - Fee Related
Application number
JP2000298950A
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Japanese (ja)
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JP2002104515A (en
Inventor
理江 井出
智子 徳永
Original Assignee
大日本印刷株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大日本印刷株式会社 filed Critical 大日本印刷株式会社
Priority to JP2000298950A priority Critical patent/JP4441088B2/en
Publication of JP2002104515A publication Critical patent/JP2002104515A/en
Application granted granted Critical
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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging container used for cup ramen and other instant foods.
[0002]
[Prior art]
For example, as shown in FIG. 1, it is preferable that the lid member 50 used for the cup ramen container can maintain an open state well while pouring hot water. For this reason, usually, the shape retention is improved by forming the lid member 50 as a laminated structure including an aluminum layer.
[0003]
However, when the cover material includes an aluminum layer, there are the following disadvantages.
(1) It becomes impossible to perform a foreign matter contamination inspection using a metal detector for a cup ramen as a final product. This is because the aluminum layer reacts to the metal detector.
(2) During waste incineration, aluminum remains in the incinerator and adheres to the inner wall of the incinerator.
[0004]
[Problems to be solved by the invention]
Therefore, the technical problem to be solved by the present invention is to provide a packaging container for accommodating cup ramen and the like, which does not include an aluminum layer and is provided with a cover material having a high opening shape retaining property.
[0005]
[Means / Actions / Effects to Solve Problems]
The present invention has been made in order to effectively solve the above-described problems, and provides a packaging container having the following features.
[0006]
The packaging container of the present invention includes a “container body having an opening on the upper surface” and a “sheet-like lid material that is heat-sealed around the opening and closes the opening”. Is provided.
[0007]
The break opening portion includes “a tab protruding outward from a part of the periphery of the sheet-like lid member”, “two break lines extending inward from the positions near both ends of the tab” and “both breaks” An easily curved belt-like region extending by connecting the inner ends of the lines. A half-cut crease is formed in the easily curved belt-like region along the extending direction.
[0008]
In the packaging container provided with the lid of the above-mentioned structure, since the half-cut crease is provided in the bendable belt-shaped region, when the tab opening is picked and the break opening part is opened, the bendable belt-shaped region is creased and opened. The state is maintained well. Therefore, it is not necessary to include an aluminum layer in the lid material in order to maintain shape retention.
[0009]
In the packaging container of the present invention, it is preferable that the two break lines extend in parallel to each other inward and that the vicinity portions of the inner ends extend in directions close to each other. By adopting such a configuration, the area of the easily curved belt-like region is reduced, and as a result, the weight of the fracture opening portion is concentrated on the easily curved belt-like region having a small area, so that the shape retention in the open state can be further improved. .
[0010]
Further, in order to obtain the same effect, the two break lines extend so as to gradually approach toward the inner side, and the vicinity portions of the inner end extend in parallel to each other. There may be. Adopting such a configuration also has the advantage that the area of the break opening portion is large and the contents such as condiments can be easily taken out.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 2 and 3 show perspective views of the packaging container 1 before and after opening the breaking opening 30. After pouring hot water in the state of FIG. 3 and closing the lid again, cup ramen is completed after a predetermined time.
[0012]
The packaging container 1 includes a container main body 2 having an opening on the upper surface, and a sheet-like lid member 3 that is heat-sealed around the opening to close the opening. The sheet-like lid member 3 is formed with a break opening portion 30. The break opening part 30 is a tab 31 protruding outward from a part of the periphery of the sheet-like lid member 3, and 2 extending in parallel to the inside of the sheet-like lid member 3 from positions near both sides of the tab 31. This includes a breaking line 32, 33 of the book, and an easily curved belt-like region 34 extending by connecting the inner ends 32b, 33b of both breaking lines.
[0013]
Therefore, when the tab 31 is picked and pulled, the breaking lines 32 and 33 are broken to the inner ends 32b and 33b, and an open state as shown in FIG. 3 is obtained. In the easily curved belt-like region 34 connecting the inner ends 32b and 33b of both break lines, either the back surface or the front surface of the sheet-like lid 3 is half-cut folded along the extending direction of the easily curved belt-like region 34. 34a (see FIG. 4) is formed. Due to the presence of this crease, the easily-curved belt-like region 34 can improve the shape retention in the folded state, and therefore the fracture opening portion 30 can maintain the open state shown in FIG. .
[0014]
As can be seen from FIG. 2 and FIG. 3, in the packaging container of the present invention, the break opening part 30 is formed inside the sheet-like lid member 3. That is, the portion that is temporarily opened for pouring hot water is a portion that is located on the inner side rather than the periphery of the sheet-like lid member 3. The peripheral edge of the sheet-like lid material to be opened is stopped at the minimum portion around the tab 31.
[0015]
As a result of adopting such a configuration, the following merits can be obtained. That is, even when the tab 31 is picked and opened with force, the entire lid is prevented from being carelessly peeled off from the container body 2. In addition, even when the break opening part 30 is opened, most of the peripheral edge of the sheet-like lid member 3 remains heat-sealed, so that the steaming efficiency of the noodles when the lid is closed again after pouring hot water is improved. Can be increased. An opening knob 40 is formed at a position facing the tab 31, and the lid member can be peeled off from the container body 2 by grasping the knob 40.
[0016]
Next, a specific configuration example of the lid member will be described with reference to FIGS. In FIG. 4, the lid member 3 shown in FIGS. 2 and 3 is shown from the upper surface side. The break lines 32 and 33 are formed by perforations, and a half-cut crease 34a is formed on the back side of the easily curved belt-like region 34. This half-cut crease can be formed on the front surface instead of the back surface. However, when the half-cut crease is present on the front surface side, the appearance is not good and the surface of the lid material may be torn from that portion. Therefore, the half-cut crease is preferably provided on the back side.
[0017]
The half-cut crease 34 is a crease constituted by a cut line having a predetermined depth that does not penetrate the lid member from the back side of the lid member. Due to the presence of such creases, the easily curved belt-like region 34 can maintain its curved state well. In FIG. 4, four half-cut creases 34 a are formed, but the number thereof is not particularly limited, and a large number of half-cut creases 34 a can be provided in the vicinity of the tab 31. The interval between the half cut creases 34a is about 4 mm.
[0018]
The two break lines 32 and 33 extend in parallel to each other and are inclined so that the vicinity portions 32a and 33a of the inner ends 32b and 33b are close to each other. With this configuration, it becomes possible to maintain the opening state of the break opening portion 30 even better, but it is also possible to omit the vicinity portions 32a and 33a and make the break lines 32 and 33 straight. is there. The length (depth) L including the inclined portions 32a and 33a of the breaking lines 32 and 33 extending in parallel is 55 to 85 mm in order to improve the shape retention of the breaking opening 30 when opening. Preferably, the width W1 of the easily curved belt-like region 34 is preferably about 20 to 40 mm. Moreover, it is preferable to ensure the width | variety of about 70 mm so that the space | interval W2 of both the broken lines 32 and 33 can take out the inside condiment bag easily.
[0019]
FIG. 5 shows a modification 103 of the lid member. The break lines 132 and 133 are perforated, and gradually approach toward the inner side of the sheet-like lid 103 and extend to the inner ends 132b and 133b. Near portions 132a and 133a of the inner ends 132b and 133b extend in parallel to each other. A region between the parallel portions 132a and 133a of the break line is an easily curved belt-like region 134. Although not shown, a half-cut crease similar to the case of FIG. Formed in crab. The width W1 of the easily curved belt-like region 134 is set to about 20 to 40 mm in order to obtain a good shape retaining property as described above. The depth L of the break opening part 130 is preferably about 100 mm in consideration of the ease of taking out the condiment bag.
[0020]
FIG. 6 shows a further modification 203 of the lid. The breaking lines 232 and 233 are composed of perforation portions 232 ′ and 233 ′ and cut line portions 232 ″ and 233 ″, respectively, and gradually approach toward the inside of the sheet-like lid 203, It extends to the inner ends 232b and 233b. Near portions 232a and 233a of the inner ends 232b and 233b extend in parallel to each other. A region between the parallel portions 232a and 233a of the break line is an easily curved belt-like region 234, and although not shown, a half-cut crease similar to the case of FIG. Formed in crab. The cut line 232 ″ and 233 ″ of each broken line is constituted by two types of half cuts formed on the front and back sides of the sheet-like lid member 203, respectively. That is, FIG. 6 is a view of the lid member 203 as viewed from the upper surface side, but the solid line portions of the ruled portions 232 ″ and 233 ″ are half cuts formed on the back surface side, and the broken line portion is the front surface side. It is a half cut formed. Both half cuts are formed by continuously extending cuts. By forming the half cut from the surface side, the opened state at the time of opening the lid material becomes good.
[0021]
The width W1 of the easily-curved belt-like region 234 is set to about 20 to 40 mm in order to obtain good shape retention as described above, and the depth L of the break opening portion 230 takes into consideration the ease of taking out the seasoning bag, etc. It is desirable to be about 100 mm.
[0022]
The packaging container of the present invention is not limited to the illustrated example. For example, the two break lines extending on both sides of the break opening portion may have different curved shapes.
[0023]
Since the sheet-like lid material in the packaging container of the present invention has an effective shape retention at the time of opening due to the presence of the bendable band-like region, it is not necessary to include an aluminum layer in a part of the laminated structure. An example of the laminated structure of the sheet-like lid material itself is shown in the sectional view of FIG. This laminated structure has a five-layer structure of “paper layer”, “light shielding layer”, “adhesive layer”, “plastic base material layer”, and “heat sealable plastic layer” in order from the front side. The plastic base material layer serves as a core of the lid material instead of the aluminum layer. Although FIG. 7 shows a half cut formed on the back surface side, as described above, the half cut may be provided on the front surface side.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view illustrating a conventional packaging container for cup ramen.
FIG. 2 is a schematic perspective view showing a packaging container according to an embodiment of the present invention in a state before opening.
3 is a schematic perspective view showing the packaging container of FIG. 2 in a state after opening. FIG.
4 is a plan view showing a cover material of the packaging container of FIG. 2 taken out. FIG.
FIG. 5 is a plan view showing a modification of the lid member.
FIG. 6 is a plan view showing a further modification of the lid member.
FIG. 7 is a cross-sectional view illustrating an example of a laminated structure of a lid material according to the packaging container of the present invention.
[Explanation of symbols]
1 Packaging container 2 Container body 3, 103, 203 Sheet-like lid
30, 130, 230 Break opening
31 tabs
32, 132, 232 Break line
33, 133, 233 Break line
34, 134, 234
34a Half-cut crease
40 Opening knob

Claims (2)

  1. In a packaging container comprising: a container body (2) having an opening on the upper surface; and a sheet-like lid (3) that is heat-sealed around the opening to close the opening.
    The sheet-like lid material (3) is provided with a break opening portion (30), and the break opening portion (30) is
    A tab (31) protruding outward from a part of the periphery of the sheet-like lid;
    Two break lines (32, 33) extending inward from the positions near both ends of the tab;
    An easily-curved belt-like region (34) extending by connecting the inner ends of both break lines, and
    A half-cut crease (34a) is formed along the extending direction in the easily curved belt-like region (34) ,
    The two break lines (32, 33) extend in parallel to each other inward, and extend in a direction in which adjacent portions (32a, 33a) of the inner ends (32b, 33b) are close to each other. A packaging container, characterized in that
  2. In a packaging container comprising: a container body (2) having an opening on the upper surface; and a sheet-like lid (3) that is heat-sealed around the opening to close the opening.
    The sheet-like lid material (3) is provided with a break opening portion (30), and the break opening portion (30) is
    A tab (31) protruding outward from a part of the periphery of the sheet-like lid;
    Two break lines (32, 33) extending inward from the positions near both ends of the tab;
    An easily-curved belt-like region (34) extending by connecting the inner ends of both break lines, and
    A half-cut crease (34a) is formed along the extending direction in the easily curved belt-like region (34),
    The two breaking lines (132, 133, 232, 233) extend so as to approach gradually inward, and are in the vicinity of the inner ends (132b, 133b, 232b, 233b) (132a, 133a, 232a, 233a) extending parallel to each other .
JP2000298950A 2000-09-29 2000-09-29 Packaging container Expired - Fee Related JP4441088B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000298950A JP4441088B2 (en) 2000-09-29 2000-09-29 Packaging container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000298950A JP4441088B2 (en) 2000-09-29 2000-09-29 Packaging container

Publications (2)

Publication Number Publication Date
JP2002104515A JP2002104515A (en) 2002-04-10
JP4441088B2 true JP4441088B2 (en) 2010-03-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000298950A Expired - Fee Related JP4441088B2 (en) 2000-09-29 2000-09-29 Packaging container

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060016098A (en) * 2003-05-29 2006-02-21 가가와 아쓰코 Vessel for prepared food and prepared food using the vessel
JP4353944B2 (en) * 2003-07-25 2009-10-28 加川 敦子 Container sealing lid with excellent opening retention
JP4489515B2 (en) * 2004-06-28 2010-06-23 大日本印刷株式会社 Perforation
JP4910325B2 (en) * 2005-07-27 2012-04-04 大日本印刷株式会社 Lid material
JP5135848B2 (en) * 2007-03-30 2013-02-06 大日本印刷株式会社 Packaging container sheet lid
JP2009057077A (en) * 2007-08-31 2009-03-19 Toppan Printing Co Ltd Lid material for container

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